Cold insulation structure of low-temperature storage tank

Abstract

The utility model relates to the field of cold insulation, in particular to a cold insulation structure of a low-temperature storage tank. A first storage groove is formed in a storage rod, a first spring is arranged on the inner wall of the first storage groove, a second mounting hole is formed in the outer side surface of a connecting ring, a first mounting hole is formed in the inner side surface of the connecting ring, the first mounting hole communicates with the second mounting hole, a telescopic rod is arranged on the inner wall of the second mounting hole, and a second storage groove is formed in the arc-shaped surface of the telescopic rod. The cold insulation device has the beneficial effects that the positioning blocks are clamped into the positioning grooves, limiting is generated between the connecting rings and the storage rods under the clamping of the fixing grooves and the fixing blocks, at the moment, the first cold insulation layer and the two sets of second cold insulation layers cannot be separated under the limiting of the limiting blocks and the limiting grooves, and the first cold insulation layer and the two sets of second cold insulation layers cannot be separated; therefore, pre-fixing of the cold insulation layers is achieved, support is provided for splicing of the cold insulation layers, at the moment, bonding of the next group of cold insulation layers can be conducted when the bonding agent is not completely solidified, and efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of cold preservation, specifically to a cold preservation structure for cryogenic storage tanks. Background Technology

[0002] A storage tank is a sealed container used to store liquids or gases.

[0003] In existing technologies, the main function of cryogenic storage tanks is to store cryogenic liquids, such as liquid oxygen, nitrogen, argon, and carbon dioxide. These media have wide applications in industrial, energy, and medical fields. The inner wall of the cryogenic storage tank needs to be equipped with a cold insulation structure to prevent heat exchange between the gas inside the tank and the outside, thus ensuring the low-temperature environment inside the tank. Most existing cold insulation structures are set up by assembling multiple sets of cold insulation layers in a staggered manner, and then connecting and fixing the multiple sets of assembled cold insulation layers with an adhesive. After the adhesive cools and solidifies, it is fixed in the inner wall of the tank, thereby achieving the cold insulation effect.

[0004] However, when using adhesive to fix multiple sets of insulation layers together, since there is no pre-fixing, it is necessary to wait for the adhesive between the previous set of insulation layers to cool down before connecting the next set. This is to prevent the adhesive from being unstable and affecting the assembly of the insulation layers. This process is time-consuming, labor-intensive, and inefficient. Utility Model Content

[0005] The purpose of this invention is to provide a cold insulation structure for cryogenic storage tanks to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a cryogenic storage tank insulation structure, the cryogenic storage tank insulation structure comprising:

[0007] A first cold insulation layer is provided at the end of the first cold insulation layer, and an installation groove is provided in the middle of the connection between the first cold insulation layer and the two sets of second cold insulation layers. A storage rod is fixed on the inner wall of the installation groove, and a first storage groove is provided inside the storage rod. A first spring is provided on the inner wall of the first storage groove.

[0008] A connecting ring has a second mounting hole on its outer surface and a first mounting hole on its inner surface. The first mounting hole communicates with the second mounting hole. A telescopic rod is provided on the inner wall of the second mounting hole. A second storage groove is provided on the arc-shaped surface of the telescopic rod. A positioning block and a second spring are provided on the inner wall of the second storage groove.

[0009] Preferably, the inner wall of the mounting groove has a connecting groove on its arc-shaped surface, and the inner wall of the connecting groove has a limiting groove. There are three sets of connecting grooves and limiting grooves, and the three sets of connecting grooves and limiting grooves are respectively opened on the inner wall of the mounting groove opened in the first cold insulation layer and the two sets of second cold insulation layers.

[0010] Preferably, an annular block is fixed on the outer surface of the storage rod, a first slot is opened near the end of the first storage groove, a first baffle is provided on the inner wall of the first storage groove, and a telescopic rod is fixed on the surface of the first baffle.

[0011] Preferably, the second storage slot has a second opening near the port, the inner wall of the second storage slot has a second baffle, the surface of the second baffle has a positioning block fixed thereon, and the upper end of the positioning block has an inclined surface.

[0012] Preferably, a connecting block is fixed to the outer arc-shaped surface of the connecting ring, and a limiting block is fixed to the surface of the connecting block. The limiting block corresponds to and is engaged with the limiting groove, forming a movable connection.

[0013] Preferably, the inner wall of the first mounting hole is provided with an annular groove, and the inner wall of the second mounting hole is provided with a positioning groove. The annular block is opposite to and engaged with the annular groove, and the positioning block is opposite to and engaged with the positioning groove, and both are movably connected.

[0014] Preferably, a slider is fixed at the end of the first cold insulation layer, and a sliding groove is provided at the end of the second cold insulation layer. The slider corresponds to and is engaged with the sliding groove, and the two are movably connected.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] The positioning block is inserted into the positioning groove, and under the locking of the fixing groove and the fixing block, a limit is created between the connecting ring and the receiving rod, preventing the connecting ring from rotating. At this time, under the restriction of the limiting block and the limiting groove, the first cold insulation layer and the two sets of second cold insulation layers cannot be separated, thus realizing the pre-fixation of the cold insulation layer and providing support for the splicing of the cold insulation layer. At this time, the next set of cold insulation layers can be bonded before the adhesive has completely solidified, improving efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a cross-sectional exploded view of the overall structure of this utility model;

[0019] Figure 3 for Figure 2 Enlarged schematic diagram of the structure at point A in the middle

[0020] Figure 4 This is a cross-sectional schematic diagram of the connecting ring structure of this utility model;

[0021] Figure 5 This is an exploded view of the telescopic component structure of this utility model;

[0022] Figure 6This is an exploded view of the telescopic rod assembly structure of this utility model.

[0023] In the diagram: 1. First insulation layer; 2. Connecting ring; 3. Second insulation layer; 4. Slider; 5. Sliding groove;

[0024] 6. Mounting slot; 7. Telescopic rod; 8. Limiting block; 9. Connecting block; 10. First mounting hole; 11. Annular groove; 12. Connecting groove; 13. Limiting groove; 14. Second mounting hole; 15. Positioning groove; 16. Annular block; 17. Storage rod; 18. First storage groove; 19. First slot opening; 20. First spring; 21. First baffle; 22. Positioning block; 23. Second slot opening; 24. Second storage groove; 25. Second spring; 26. Second baffle; 27. Fixing block; 28. Fixing groove. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0026] For example 1, please refer to Figures 1-5 This utility model provides a technical solution: a low-temperature storage tank insulation structure, wherein two sets of second insulation layers 3 are provided at the end of the first insulation layer 1, and an installation groove 6 is provided in the middle of the connection between the first insulation layer 1 and the two sets of second insulation layers 3. A storage rod 17 is fixed on the inner wall of the installation groove 6, and the storage rod 17 supports the connecting ring 2. A first storage groove 18 is provided inside the storage rod 17, and a first spring 20 is provided on the inner wall of the first storage groove 18. Due to the elasticity of the spring, the first spring 20 will push the telescopic rod 7 to move out of the first storage groove 18 by pushing the first baffle 21.

[0027] A second mounting hole 14 is provided on the outer surface of the connecting ring 2, and a first mounting hole 10 is provided on the inner surface of the connecting ring 2. The first mounting hole 10 communicates with the second mounting hole 14. A telescopic rod 7 is provided on the inner wall of the second mounting hole 14. A second storage groove 24 is provided on the arc-shaped surface of the telescopic rod 7. A positioning block 22 and a second spring 25 are provided on the inner wall of the second storage groove 24. The second spring 25 will push the positioning block 22 out of the second storage groove 24 by pushing against the second baffle 26, so that the positioning block 22 is re-locked into the positioning groove 15. Under the locking of the fixing groove 28 and the fixing block 27, a limit is generated between the connecting ring 2 and the storage rod 17, so that the connecting ring 2 cannot rotate. At this time, under the restriction of the limiting block 8 and the limiting groove 13, the first cold insulation layer 1 and the two sets of second cold insulation layers 3 cannot be separated, thereby realizing the pre-fixation of the cold insulation layer.

[0028] Based on Embodiment 1, in order to achieve pre-fixation between the cold insulation layers, a connecting groove 12 is provided on the arc-shaped surface of the inner wall of the mounting groove 6, and a limiting groove 13 is provided on the inner wall of the connecting groove 12. Three sets of connecting grooves 12 and limiting grooves 13 are provided, and the three sets of connecting grooves 12 and limiting grooves 13 are respectively provided on the inner wall of the mounting groove 6 provided in the first cold insulation layer 1 and the two sets of second cold insulation layers 3.

[0029] An annular block 16 is fixed on the outer surface of the storage rod 17. The annular block 16 and the annular groove 11 are interlocked, which plays a positioning role in the rotation of the connecting ring 2 on the storage rod 17 and prevents the connecting ring 2 from disengaging during rotation. A first slot 19 is opened at the end of the first storage groove 18. A first baffle 21 is provided on the inner wall of the first storage groove 18. A telescopic rod 7 is fixed on the surface of the first baffle 21.

[0030] The second storage slot 24 has a second slot 23 near the end. The inner wall of the second storage slot 24 is provided with a second baffle 26. A positioning block 22 is fixed on the surface of the second baffle 26. The upper end of the positioning block 22 has an inclined surface. Since the upper surface of the positioning block 22 is inclined, when the telescopic rod 7 is stored, the first slot 19 will squeeze the positioning block 22 through the inclined surface, so that the positioning block 22 is stored in the second storage slot 24.

[0031] A connecting block 9 is fixed to the outer arc-shaped surface of the connecting ring 2. A limiting block 8 is fixed to the surface of the connecting block 9. The limiting block 8 corresponds to and is engaged with the limiting groove 13, forming a movable connection. Under the restriction of the limiting block 8 and the limiting groove 13, the first cold insulation layer 1 and the two sets of second cold insulation layers 3 cannot be separated, thereby realizing the pre-fixation of the cold insulation layer and providing support for the splicing of the cold insulation layer. At this time, the next set of cold insulation layers can be bonded before the adhesive has completely solidified, which improves efficiency.

[0032] The inner wall of the first mounting hole 10 has an annular groove 11, and the inner wall of the second mounting hole 14 has a positioning groove 15. The annular block 16 is opposite to and locked in the annular groove 11, and the positioning block 22 is opposite to and locked in the positioning groove 15. They are all movably connected. The positioning block 22 is locked in the positioning groove 15, and under the locking of the fixing groove 28 and the fixing block 27, a limit is created between the connecting ring 2 and the storage rod 17, so that the connecting ring 2 cannot rotate.

[0033] A slider 4 is fixed at one end of the first cold insulation layer 1, and a sliding groove 5 is provided at the other end of the second cold insulation layer 3. The slider 4 corresponds to and is engaged with the sliding groove 5, and the two are movably connected, which plays a positioning role in connecting the first cold insulation layer 1 and the second cold insulation layer 3.

[0034] In practical use, the insulation layers of existing cryogenic storage tanks are mostly made of semi-rigid materials such as perlite, glass bricks, and rubber. Before bonding the insulation layers, the first insulation layer 1 is placed above the connection between two adjacent sets of second insulation layers 3. Then, the telescopic rod 7 is pressed down to retract into the first receiving groove 18. Since the upper surface of the positioning block 22 is sloped, the first groove 19 will press the positioning block 22 through the slope when the telescopic rod 7 is retracted, causing the positioning block 22 to retract into the second receiving groove 24. When the telescopic rod 7 is completely retracted into the first receiving groove 18, the positioning block 22 is completely retracted into the second receiving groove 24, and the limit between the positioning block 22 and the positioning groove 15 disappears. At this time, the connecting ring 2 can be rotated on the surface of the receiving rod 17. The rotation of the connecting ring 2 will drive the limit block 8 to rotate. When the limit block 8 is completely locked into the limit groove 13, the rotation stops. When the connecting ring 2 is engaged and the pressing of the telescopic rod 7 is stopped, due to the elasticity of the spring, the first spring 20 will push the telescopic rod 7 out of the first storage groove 18 by pressing the first baffle 21. When the telescopic rod 7 has completely moved out of the first storage groove 18, since there is no restriction of the first groove 19, the second spring 25 will push the positioning block 22 out of the second storage groove 24 by pressing the second baffle 26, so that the positioning block 22 is re-locked into the positioning groove 15. Under the locking of the fixing groove 28 and the fixing block 27, a limit is created between the connecting ring 2 and the storage rod 17, so that the connecting ring 2 cannot rotate. At this time, under the restriction of the limiting block 8 and the limiting groove 13, the first cold insulation layer 1 and the two sets of second cold insulation layers 3 cannot be separated, thus realizing the pre-fixation of the cold insulation layer and providing support for the splicing of the cold insulation layer. At this time, the next set of cold insulation layers can be bonded before the adhesive has completely solidified, which improves efficiency.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cryogenic storage tank insulation structure, characterized in that: The cryogenic storage tank insulation structure includes: The first cold insulation layer (1) has two sets of second cold insulation layers (3) at its ends. The first cold insulation layer (1) and the two sets of second cold insulation layers (3) are connected by an installation groove (6) in the middle. The inner wall of the installation groove (6) is fixed with a storage rod (17). The storage rod (17) has a first storage groove (18) inside. The inner wall of the first storage groove (18) is provided with a first spring (20). A connecting ring (2) has a second mounting hole (14) on its outer surface and a first mounting hole (10) on its inner surface. The first mounting hole (10) communicates with the second mounting hole (14). A telescopic rod (7) is provided on the inner wall of the second mounting hole (14). A second storage groove (24) is provided on the arc-shaped surface of the telescopic rod (7). A positioning block (22) and a second spring (25) are provided on the inner wall of the second storage groove (24).

2. The cryogenic storage tank insulation structure according to claim 1, characterized in that: The inner wall of the mounting groove (6) has a connecting groove (12) on its arc-shaped surface. The inner wall of the connecting groove (12) has a limiting groove (13). The connecting groove (12) and the limiting groove (13) are provided in three sets. The three sets of connecting grooves (12) and limiting grooves (13) are respectively provided on the inner wall of the mounting groove (6) provided in the first cold insulation layer (1) and the two sets of second cold insulation layers (3).

3. The cryogenic storage tank insulation structure according to claim 2, characterized in that: The outer surface of the storage rod (17) is fixed with an annular block (16), the first storage groove (18) is provided with a first slot (19) near the port, the inner wall of the first storage groove (18) is provided with a first baffle (21), the inner wall side surface of the first storage groove (18) is fixed with a fixing block (27), and the surface of the first baffle (21) is fixed with a telescopic rod (7).

4. The cryogenic storage tank insulation structure according to claim 3, characterized in that: The first baffle (21) has a fixing groove (28) on its surface, the second storage groove (24) has a second slot (23) near its end, the inner wall of the second storage groove (24) has a second baffle (26), the surface of the second baffle (26) has a positioning block (22) fixed thereon, and the upper end of the positioning block (22) has an inclined surface.

5. The cryogenic storage tank insulation structure according to claim 4, characterized in that: A connecting block (9) is fixed on the outer arc-shaped surface of the connecting ring (2), and a limiting block (8) is fixed on the surface of the connecting block (9). The limiting block (8) corresponds to and is engaged with the limiting groove (13), forming a movable connection.

6. The cryogenic storage tank insulation structure according to claim 5, characterized in that: The inner wall of the first mounting hole (10) is provided with an annular groove (11), and the inner wall of the second mounting hole (14) is provided with a positioning groove (15). The annular block (16) is opposite to and engaged with the annular groove (11), and the positioning block (22) is corresponding to and engaged with the positioning groove (15), all of which are movably connected.

7. The cryogenic storage tank insulation structure according to claim 6, characterized in that: The first cold insulation layer (1) has a slider (4) fixed at its end, and the second cold insulation layer (3) has a sliding groove (5) at its end. The slider (4) corresponds to and is engaged with the sliding groove (5), and the two are movably connected.

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